At a time when financial markets are experiencing constant fluctuations, more and more investors are turning to tangible and sustainable assets. Among them, precious stones occupy a special place: they combine financial value, rarity, beauty and cultural heritage.
Unlike other investments, stones are both an asset and an object of art, capable of being passed on and admired.
Their considerable value is only accelerating with growing global demand, while production is limited.
At Jérôme Bonneville, each stone is selected for its exceptional quality, its value-adding potential and is certified. We offer you a customised, confidential and transparent investment approach.
Precious stones have been coveted for centuries for their beauty and rarity. They have stood the test of time and the history of mankind, and these natural gems have always been coveted.
Unlike some volatile investments, precious stones benefit from constant demand, particularly for coloured stones. Their increasing rarity - linked to the depletion of deposits - contributes to a steady rise in their value over the long term.
A stone of just a few carats can concentrate a very high financial value. It represents an asset that is easy to hold and can be passed on discreetly.
Investing in a precious stone means both securing part of your estate and treating yourself to a rare, natural and timeless object of beauty.
The coloured stones Their natural rarity and beauty make them assets with very high potential.
Sapphires come in all colours, the best known being blue, while the rarest is the orange-pink «padparadscha».
They must be unheated.
The most sought-after blues have a saturated «royal blue» hue. The finest specimens come from Sri Lanka (formerly Ceylon), Burma (formerly Myanmar) and Madagascar. The rarest come from Kashmir with their special velvety texture.
Like sapphire, ruby is corundum. It is always red, and its colour and rarity are due to the chromium. It must be unheated and have a bright «pigeon's blood» red colour. A perfect stone weighing more than 2.5ct is exceptional. The finest specimens come from Burma (formerly Myanmar), Vietnam, Tanzania and Mozambique.
This mysterious stone with its deep, intense green is reminiscent of plants, as are its typical inclusions: its gardens. Emerald, a member of the beryl family, owes its vivid colour to the presence of chromium and vanadium. They must be unoiled. The most beautiful stones come from Brazil, Zambia, Pakistan and Colombia for their coveted deep bluish-green colour.
Less well known to the general public, certain stones such as red spinels and Paraiba tourmalines are attracting growing interest among connoisseurs and seeing their value rise rapidly.
Investing in precious stones requires a cutting-edge expertise and absolute confidence. At Jérôme Bonneville, we offer you personalised support every step of the way:
Each appointment takes place in complete discretion, by appointment only, in a confidential setting in Lausanne & Zurich.
To guarantee the authenticity of the stones, each purchase is accompanied by one or more certificates issued by an internationally recognised and independent laboratory (SSEF, Gübelin, GRS, etc.). These analyses and documents attest to the precise characteristics of each stone in a reliable and impartial manner.
